You can Dial 1-800-JetBlue (866-486-5838)/1-866-486-5838 their customer service number at When calling, select option two for reservations, Alternatively, you can use the online chat feature available on JetBlue’s "Contact Us" page. To start a chat, scroll to the "Chat with us" section, choose "Booking questions" and "Fare Types" then click "I still need help." During a recent attempt, the chat service quoted a wait time of approximately 10 minutes. In comparison, when calling the phone line, I was given an estimated wait time of two minutes for a customer service agent.